Total Access 1248 Quad T1 IMA 48-Port DSLAM with Modem Installation and Maintenance Practice
2-2
61179641AL1-5C
EXPANSION
Up to four Total Access 1248 systems can be connected together (see
units must be a Total Access 1248 Host unit (e.g., P/N 1179641AL1) and the others are Total
Access 1248 Client units (P/N 1179641L5).
The client units (also referred to as Expansion units) have RJ-45 jacks, labeled
EXPANSION IN
and
OUT,
for the purpose of expanding one to another.
The Total Access 1248 provides the network connection for all of the client units. All provi-
sioning for the clients is completed through the Host unit.
Beginning with the host, a Category 5e, non-crossover cable is connected from the
EXPANSION
OUT
jack of the host to the
EXPANSION IN
jack of the first client unit. Further connections
between client unit
EXPANSION OUT
jacks to
EXPANSION IN
jacks continue until a total of up to
three client units have been connected with the third client unit having only a connection to
the
EXPANSION IN
jack.
Figure 2-2. Expansion Cabling
Client 1
Client 2
Host
ALARM
CRAFT
PWR
ALM
TOP:POTS BOTTOM: ADSL+POTS
PORTS 1-24
TOP:POTS BOTTOM: ADSL+POTS
PORTS 25-48
ETHERNET
OUT
EXPANSION
-48V .....,5.0A
USE COPPER CONDUCTORS ONLY!
T1/E1
A B
-48V RET -48V RET
A
B
FAN MODULE
1179675L1
1179641AL1
T1/E1 1-4
FAN MODULE
1179675L1
CRAFT
PWR
ALM
TOP:POTS
BOTTOM: ADSL+POTS
PORTS 1-24
TOP:POTS BOTTOM: ADSL+POTS
PORTS 25-48
OUT
EXPANSION
-48V .....,5.0A
USE COPPER CONDUCTORS ONLY!
A
B
-48V RET
-48V
RET
IN
EXPANSION
1179641L5
FAN MODULE
1179675L1
CRAFT
PWR
ALM
TOP:POTS
BOTTOM: ADSL+POTS
PORTS 1-24
TOP:POTS BOTTOM: ADSL+POTS
PORTS 25-48
OUT
EXPANSION
-48V .....,5.0A
USE COPPER CONDUCTORS ONLY!
A
B
-48V RET
-48V
RET
IN
EXPANSION
1179641L5
Client 3
FAN MODULE
1179675L1
CRAFT
PWR
ALM
TOP:POTS
BOTTOM: ADSL+POTS
PORTS 1-24
TOP:POTS BOTTOM: ADSL+POTS
PORTS 25-48
OUT
EXPANSION
-48V .....,5.0A
USE COPPER CONDUCTORS ONLY!
A
B
-48V RET
-48V
RET
IN
EXPANSION
1179641L5
